JPH09215460A - Drain cock of fish preserve for fishing boat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drain cock of simple structure, designed to charge seawater or freshwater into or discharge it from a fish preserve in a fishing boat, and capable of opening or closing the port at the bottom of the fish preserve conveniently in a simple operation. SOLUTION: This drain cock is formed through integrating the partition wall 3 and the peripheral wall of a fish preserve, being equipped with a vertical outer cylinder 5 with the lower end penetrated through the shipbottom and opened, a 1st penetrating hole 7 on the peripheral wall portion facing on the bottom of the fish preserve of the outer cylinder, an inner cylinder 8 with the lower end open, revolvably and tightly threaded through the outer cylinder 5, a 2nd penetrating hole 16 identical in height with the 1st hole 7 and formed on the peripheral wall of the inner cylinder 8, and a handle 14 mounted on the upper end of the inner cylinder 8, extended horizontally and collapsible downward. When the handle 14 is raised and the inner cylinder 8 revolved so as to allow the 1st hole 7 to coincide with the 2nd hole 16, the fish preserve 2 runs communicating with the outside of the boat, effecting charge or discharge of seawater or freshwater into or from the fish preserve 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water drain plug provided for putting seawater or fresh water in and out of a cage provided in a fishing boat.

[0002]

2. Description of the Related Art A cage provided on a fishing boat has an opening provided with a drain plug at the bottom thereof. This opening penetrates the bottom plate of the fishing boat and opens the water drain plug in a state where the fishing boat is floated on the water, so that seawater or fresh water is introduced into the cage to the draft level of the boat. Also, after pulling the ship to the land, if you open this drain tap, the water in the cage will be drained.

FIG. 5 shows an example of the structure of a conventional water drain plug of this type. The opening 2 provided in the bottom 6 of the cage 2 is shown in FIG.
A female screw 22 is cut on the inner peripheral surface of the opening 1, and the opening 21 is closed by screwing a plug 23 onto the female screw. The eyelet 12 is fixed to the lower end side of the opening 21, and the knob 24 is attached to the upper surface of the stopper 23. The opening 21 is opened by turning and removing the stopper with this knob, and the water in the cage 2 is introduced or discharged. Since the opening 21 may be left open in a normal use state, such a primitive structure has been used for a long time.

[0004]

When the ship is moored or when the speed is slow even while traveling, the opening 21 at the bottom of the cage remains open and there is no problem. Rather, it is better to leave it open because the water in the cage gradually changes due to the shaking of the boat. Conventionally, there was no problem because the navigation speed of fishing boats was not so fast, but recently, fishing boats have also become faster. When the ship travels at high speed, the ship floats due to the hydroplane phenomenon. Therefore, if the opening 21 of the cage is left open at this time, there is a problem that the water level of the cage decreases. Therefore, when the ship travels at high speed, the opening 21 must be closed with the stopper 23. With the conventional structure, when opening and closing this stopper, the hands must be thrust into the cage, and the stopper at the lower position must be closed. Since I had to bend over to operate it, the workability was poor. Especially for personal leisure fishing boats, this kind of work is not very welcome, and especially in cold weather, you have to roll your arms and put your hands in cold water to open and close the spigot, which makes the work extremely difficult. Unpleasant to.

An object of the present invention is to obtain a water drain plug having a simple structure capable of opening and closing the opening of the bottom of the cage comfortably by a simple operation.

[0006]

A drainage plug for a fishing cage according to a first aspect of the present invention is one in which the partition 3 of the cage and the peripheral wall are provided integrally with each other, and the lower end is opened through the bottom of the vessel. The outer cylinder 5, the first through hole 7 provided in the peripheral wall of the portion of the outer cylinder facing the bottom of the cage, and the lower end rotatably and densely fitted in the outer cylinder 5 is open. The cylinder 8, the second through hole 16 provided at the same height as the first through hole 7 on the peripheral wall of the inner cylinder 8, and attached to the upper end of the inner cylinder 8 to extend horizontally and be foldable downward It is characterized in that it is provided with a large handle 14.

[0007]

If the handle 14 is raised horizontally and the inner cylinder 8 is rotated in the outer cylinder 5 so that the first through hole 7 and the second through hole 16 are aligned with each other, these through holes 7, 16 and The cage 2 communicates with the outside of the boat through the inner cylinder 8, and seawater or fresh water is introduced or discharged into the cage 2. Similarly, when the handle 14 is operated to rotate the inner cylinder 8 to a position where the second through hole 16 is displaced from the first through hole 7, the passage between the cage and the outboard is blocked, Even if the hull rises, the water level in the cage is maintained. Since the operation of the handle 14 can be performed while a person stands up and it is not necessary to put a hand in the cage, opening and closing the drainage plug of the cage can be performed easily. Since the inner cylinder 8 is provided with the handle 14, no force is required for the operation, and the handle is foldable, so that it does not interfere when not in use. The outer cylinder 5 has a vertically erected structure, but by integrally providing the partition wall 3 and the peripheral wall 4 of the cage, sufficient structural strength can be imparted and a compact structure that does not disturb the eyes can be obtained.

Further, if necessary, if the inner circumference of the outer cylinder and the outer circumference of the inner cylinder in the portion where the first and second through holes 7 and 16 are provided are made conical, the outer cylinder and the inner cylinder are separated from each other. The water tightness between them can be made higher.

[0009]

1 to 4 show an embodiment of a water drain plug according to the present invention. An outer cylinder 5 is formed by integrating a peripheral wall 4 with the partition wall 3 in a part of the partition wall 3 of the cage 2 provided in the center of the hull 1 of the fishing boat. The outer cylinder 5 is cylindrical and has an upper end and a lower end that are open, and a lower end that penetrates the ship bottom 6 and is open to the water outside the ship. A first through hole 7 is provided in a portion of the outer wall facing the bottom of the cage 2 at one location on the peripheral wall.

An inner cylinder 8 is rotatably and airtightly fitted to the outer cylinder 5. Screws 9 and 11 are provided on the upper and lower outer circumferences of the inner cylinder 8.
Is provided, and a collar 13 to which a perforated plate 12 is attached is screwed to the screw 11 at the lower end. On the other hand, the screw 9 at the top is
A cap 15 equipped with a handle 14 is screwed on. The inner cylinder 8 is axially fixed by the flange 13 contacting the lower end of the outer cylinder 5 and the cap 15 contacting the upper end of the outer cylinder 5. When the inner cylinder 8 is mounted on the outer cylinder, a second through hole 16 is provided at one position on the peripheral wall thereof at a height corresponding to the first through hole 7 of the outer cylinder.

The handle 14 has its base end pivotally attached to the cap 15 by a horizontal pin 17, and is folded downward by its own weight when it is not operated. As shown in FIG. 3, the inner cylinder 8 is provided with an oblique circumferential groove 18 which passes above the second through hole 16 and is located below the second through hole at a position facing each other by 180 degrees. By fitting the O-ring 19 in the circumferential groove 18, the water tightness between the first through hole 7 and the second through hole 16 when the water drain plug is closed can be made more reliable. . That is, in the structure in which the O-ring 19 fitted in the oblique circumferential groove is provided, the inner cylinder 8 is placed so that the second through hole 16 is located exactly 180 degrees opposite to the first through hole 7. If you rotate it, the first
The through hole 7 of the second through hole 1 opens above the O-ring 19.
Since 6 is opened below the O-ring 19, the first through-hole 7 and the second through-hole 16 are formed by the O-ring 19.
That is, the gap between the outer cylinder 5 and the inner cylinder 8 is completely blocked.

[0012]

As can be understood from the above description of the embodiments, according to the present invention, the opening and closing operation is easy and it is not necessary to put a hand into the cage when opening and closing, and the structure is simple and sufficient structural strength is secured. It is possible to obtain a water draining stopper for a cage that is easy to do.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a water drain plug of a fishing boat cage.

FIG. 2 is a cross-sectional view of a water drain plug of a fishing cage.

FIG. 3 is a cross-sectional view showing a watertight structure of a water drain plug of a fishing boat cage.

FIG. 4 is a cross-sectional view showing the position of the water drain plug in the fishing boat cage.

FIG. 5 is a sectional view showing a conventional drain plug.

[Explanation of symbols]

 3 Partition wall 5 Outer cylinder 6 Ship bottom 7 First through hole 8 Inner cylinder 14 Handle 16 Second through hole

Claims (1)

[Claims] 1. An outer cylinder (5) in the vertical direction, which is integrally provided with a partition wall (3) of the cage and a peripheral wall, and has a lower end penetrating and opening the bottom of the vessel, and a bottom of the cage of the outer cylinder. A first through hole (7) provided in a peripheral wall of the portion, an inner cylinder (8) having a lower end opened which is tightly fitted in the outer cylinder (5) in a freely rotatable manner, and a first transparent hole. Hole
A second through hole (16) provided on the peripheral wall of the inner cylinder (8) at the same height as (7) and attached to the upper end of the inner cylinder (8) to extend horizontally and be foldable downward. A water drain plug for a fishing boat cage, which is provided with a handle (14).